Abstract
Pigeon pea (Cajanus cajan (L.) Millsp.) is an annual leguminous crop (perennial) which has advantages over other local leguminous crops as drought resistant, hold collapsed and strong pods. The research on drought resistance plant is very important to adapt to climate change adverse impact to support food security. The potential of pigeon pie has not been supported by accurate data. To explore the potential of pigeon pea, it is necessary to record the important properties by characterization, one of which is molecular. Increasing genetic diversity can be done through mutation which widely used gamma ray for the induction. The purpose of this study was to identify the genetic diversity of pigeon pea of black, white and brown seeds type resulted by gamma-ray irradiation with a wavelength of 100, 200 and 300 grays by using RAPD method. The experiment resulted 14 bands, 12 of them are polymorphic bands and 2 of them are monomorphic with size varied from 300 bp to 1.3 kbp. The dendrogram showed from 30 accessions are divided into two main clusters, B shows clear genetical divergence from other clusters and some others split randomly. The range of similarity coefficient is from 0.43 to 1.00
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